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Cisco Bug: CSCsz50191 - Voice calls going through MGCP/H323 gateway with 3.1Khz support may fail

Last Modified

Feb 07, 2017

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases


Description (partial)


Voice calls going through MGCP or H323 controlled gateway fail
when the MGCP/H323 controlled gateway is configured for '3.1Khz' support.


MGCP/H323 controlled gateway have "##BC=3.1kHz##" configured as description
on CCMADIN configuration page
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
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